Derivative Warrants | NIKKEI28P2606A | DERIVATIVE PUT WARRANTS ON NIKKEI 225 STOCK AVERAGE INDEX ISSUED BY MACQUARIE SECURITIES (THAILAND) LIMITED LAST TRADING IN JUNE 2026 # A | NIKKEI 225 STOCK

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Derivative Warrants | NIKKEI28C2606D | DERIVATIVE CALL WARRANTS ON NIKKEI 225 STOCK AVERAGE INDEX ISSUED BY MACQUARIE SECURITIES (THAILAND) LIMITED LAST TRADING IN JUNE 2026 # D | NIKKEI 225 STOCK

Derivative Warrants | NIKKEI28P2606D | DERIVATIVE PUT WARRANTS ON NIKKEI 225 STOCK AVERAGE INDEX ISSUED BY MACQUARIE SECURITIES (THAILAND) LIMITED LAST TRADING IN JUNE 2026 # D | NIKKEI 225 STOCK

Derivative Warrants | NIKKEI28C2606B | DERIVATIVE CALL WARRANTS ON NIKKEI 225 STOCK AVERAGE INDEX ISSUED BY MACQUARIE SECURITIES (THAILAND) LIMITED LAST TRADING IN JUNE 2026 # B | NIKKEI 225 STOCK

Derivative Warrants | NIKKEI28P2606B | DERIVATIVE PUT WARRANTS ON NIKKEI 225 STOCK AVERAGE INDEX ISSUED BY MACQUARIE SECURITIES (THAILAND) LIMITED LAST TRADING IN JUNE 2026 # B | NIKKEI 225 STOCK

Rules, Conditions and Procedures for Filing of Annual Financial Statements and Preparation of Reports of the Stock Exchange of Thailand

Offering for Sale of Certificates Representing Interest from Underlying Securities by the Subsidiary of the Stock Exchange of Thailand

Limited. The Company has already registered the changes to the Department of Business Development, Ministry of Commerce on April 17, 2019. In this regard, the Company still uses the same stock symbol “RATCH